Cutter head



A. SCHUPP June 4, 1929.

CUTTER HEAD Filed July 11, 1928 Patented June 4, 1929.

UNITED ALFRED SCH'UPP, OF AUSTIN, TEXAS.

CUTTER HEAD.

Application filed July 11,

This invention relates to improvements in cutter heads and which embodies among other characteristics tool holders adapted to retain cutters of different sizes against displacement.

Another object of the invention contemplates locking elements for the tool holders whereby the cutters or tools may be adjusted as to depth.

An additional object of the invention 0011 templates rib and groove connections between the cutter head and tools or cutter therefor to preventdistortion thereof.

More specifically stated the cutter head may be made any desired thickness to accommodate a multiplicity of cutters and holders therefor whereby trim and other molding of different design may be cut.

With the above and other objects in View, the invention further consists of the following novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawing and pointed out in the appended claims.

In the drawing Figure 1 is a top plan view of the cutter head partly broken away to illustrate the construction and mountings of the cutters, holding elements and locking devices.

Figure 2 is a sectional view taken on line 22 of Figure 1.

Figure 3 is a fragmentary side elevation of the cutter head illustrating the disposition of a multiplicity of cutters in position for use and roughly cutting outa piece of work tofinally take shape as illustrated in the dotted lines.

Referring to the drawing in detail, wherein like characters of reference denote cor responding parts, the reference character 10 indicates a cutter head having a centrally and vertically disposed opening 11 adapted to accommodate a mandrel.

Caps 12, carried upon the outer periphery of the head 10, are adapted for inter-fitting engagement therewith through the instrumentality of fin and pocket connections 13 and 141 respectively to prevent independent circumferential movement of said caps when the head is rotated by said mandrel. Shoulders 15, extending the entire width of the head immediately adjacent the fins 13, are adapted to seat the innermost ends of the caps 12, whereby the latter will be spaced from seats 16 and 17 within the cutter head. The seats 16 extend outwardly for appre- 1923. Serial No. 291,786.

ciable distances beyond the seats 17, the purpose of which will be presently apparent. Slots 18 of substantial T-shape cross section located between the seats 16 and 17 within the head are adapted to accommodate correspondingly shaped nuts 19.

Tool bars 20, interposed between the seats 16 and the inner surfaces or sides of the caps 12, are provided with V-shaped fins 21 upon the outer sides thereof and adapted for reception within correspondingly shaped grooves 22 upon the inner sides of said caps to prevent lateral shifting movement thereof.

Gutters or blades 23, interposed between the inner sides of the tool bars 20 and the seats 17 are adapted to dispose the working ends thereof slightly beyond the beveled ends 24 of the tool bars 20. Said tool bars are not only adapted to sustain the blades or tools 23 in position for use but by reason of the fact that the same have the beveled ends 24 therefor disposed in juxtaposition to the cutting or working ends of the blades 23 chattering, vibration and possible breaking of said blades is prevented.

Cap screws 25, having the heads therefor disposed within countersunk bores 26 in the caps 12, are adapted for threaded engagement upon the shank ends thereof with the nuts 19 within the slots 18 whereby the tool holders 20 and cutters or blades 23 therefor will be lockingly retained against displacement.

The aforementioned construction is duplicated upon diametrically opposite sides of the cutter head. As illustrated in Figure 1 of the drawing, two sets of blades 23 are provided, whereas an additional set of mountings retains blade members 27, which do not ex tend the working ends thereof to the extent of the blades 23 and which are merely adapted to provide chip breakers.

From the illustration in Figure 3 of the drawing, a multiplicity of the cutters and chip breakers are disposed in position for use to roughly cut away a piece of work which will ultimately take shape and correspond to the dotted outline disclosed. Spacing elements 28 are adapted to be carried upon the inner sides of the caps 12 and between the cutters 23 or chip breakers 27 to permit insertion of a multiplicity of cutters or chip breakers to turn out work in different shapes and designs.

Employment of the aforementioned cutter head permits application of blades of different thicknesses inasmuch as caps may be clamped to support the projection of the knife when same is extended its utmost and which will be free from vibration.

The blades may be employed for making all types of cuts of different designs without increasing the thickness thereof inasmuch changes in its form, proportions and minor details of construction, and the right is herein reserved to make such changes as proper- 1y fall within the scope of the appended claims.

Having thus described the invention, What is claimed is:

1. A. cutter head having portions removed upon the outer sides thereof, caps having fin and pocket connections with the head being extended over the portions removed, the head being provided with seats disposed in spaced relation to the inner side of said caps, tool holders and blades arranged upon the seats and retained thereagainst by said caps, look-' ing elements arranged between the head and caps to dispose the cutters against displacenientand rib and groove connections being established between the tool holders and caps to prevent distortion of the cutters.

2. A cutter head having portions removed upon the outer sides thereof, caps havingfin and pocket connections With the head being extended over the portions removed, the head being provided with seats disposed in spaced relation to the inner side of said caps, tool holders and blades arranged upon the seats and retained thereagainst by said caps, look ing elements arranged between the head and caps to dispose the cutters against displacement rib and groove connections being established between the tool holders and caps to prevent distortion of the cutters, and spacing elements also arranged upon the seats and between the tool holders for synchronization therewith in the proper retention of said cutters.

In testimony whereof I afiix my signature.

ALFRED SCHUPP. 

